Abstract
This paper describes the effect of nanosecond pulsed electrical discharges generated in distilled water on cobalt-modified fluorinated polyimide (PI) films derived from hexafluoroisopropylidendiphthalic dianhydride and 4,4'-diamino-3,3'-dimethyl diphenylmethane. The PI films have been characterized by dielectric spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction (XRD) measurements. The relative permittivity of the PI films increased after treatment by water plasma. The XRD analysis has shown a slight increase of the degree of intermolecular ordering and stronger π-π interactions with the increase of the plasma treatment time. Application of nanosecond high-voltage pulses has induced an increase in concentration of CF3 groups at the polymer surface. A decrease of the cobalt and chlorine fractions, due to their migration into water, and an increase of aliphatic C-C bonds at the film surface may be responsible for the relative permittivity modification after exposure to water plasma.
| Original language | English |
|---|---|
| Pages (from-to) | 2708-2714 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Plasma Science |
| Volume | 44 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2016 Nov 1 |
| Externally published | Yes |
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Keywords
- Dielectric spectroscopy
- plasma in liquids
- polyimide (PI) films
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Condensed Matter Physics
Cite this
Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water. / Miron, Camelia; Zhuang, Jie; Balcerak, Michal; Holub, Marcin; Kruth, Angela; Quade, Antje; Sava, Ion; Weltmann, Klaus DIeter; Kolb, Juergen F.
In: IEEE Transactions on Plasma Science, Vol. 44, No. 11, 01.11.2016, p. 2708-2714.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water
AU - Miron, Camelia
AU - Zhuang, Jie
AU - Balcerak, Michal
AU - Holub, Marcin
AU - Kruth, Angela
AU - Quade, Antje
AU - Sava, Ion
AU - Weltmann, Klaus DIeter
AU - Kolb, Juergen F.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - This paper describes the effect of nanosecond pulsed electrical discharges generated in distilled water on cobalt-modified fluorinated polyimide (PI) films derived from hexafluoroisopropylidendiphthalic dianhydride and 4,4'-diamino-3,3'-dimethyl diphenylmethane. The PI films have been characterized by dielectric spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction (XRD) measurements. The relative permittivity of the PI films increased after treatment by water plasma. The XRD analysis has shown a slight increase of the degree of intermolecular ordering and stronger π-π interactions with the increase of the plasma treatment time. Application of nanosecond high-voltage pulses has induced an increase in concentration of CF3 groups at the polymer surface. A decrease of the cobalt and chlorine fractions, due to their migration into water, and an increase of aliphatic C-C bonds at the film surface may be responsible for the relative permittivity modification after exposure to water plasma.
AB - This paper describes the effect of nanosecond pulsed electrical discharges generated in distilled water on cobalt-modified fluorinated polyimide (PI) films derived from hexafluoroisopropylidendiphthalic dianhydride and 4,4'-diamino-3,3'-dimethyl diphenylmethane. The PI films have been characterized by dielectric spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction (XRD) measurements. The relative permittivity of the PI films increased after treatment by water plasma. The XRD analysis has shown a slight increase of the degree of intermolecular ordering and stronger π-π interactions with the increase of the plasma treatment time. Application of nanosecond high-voltage pulses has induced an increase in concentration of CF3 groups at the polymer surface. A decrease of the cobalt and chlorine fractions, due to their migration into water, and an increase of aliphatic C-C bonds at the film surface may be responsible for the relative permittivity modification after exposure to water plasma.
KW - Dielectric spectroscopy
KW - plasma in liquids
KW - polyimide (PI) films
UR - http://www.scopus.com/inward/record.url?scp=85027401048&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027401048&partnerID=8YFLogxK
U2 - 10.1109/TPS.2016.2600280
DO - 10.1109/TPS.2016.2600280
M3 - Article
VL - 44
SP - 2708
EP - 2714
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 11
ER -